{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe4527cfee057b6d3cff88f6352b0b4946d336135002b9eb3d240c598b7564c6a",
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    "userId": "293137833"
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}